Here are entered works on active immunization with a vaccine. Works on any process, active or passive, that leads to increased immunity are entered under Immunization. --subdivision Vaccination under individual diseases and types of diseases and individual animals and groups of animals, e.g. Tuberculosis--Vaccination; Cattle--Vaccination
--subdivision Maintenance and repair under kinds of objects, including machinery, vehicles, structures, etc., e.g. Automobiles--Maintenance and repair; Dwellings--Maintenance and repair; Nuclear reactors--Maintenance and repair
--subdivision Prevention under individual diseases and types of diseases, e.g. Cancer--Prevention; and subdivision Diseases--Prevention under organs and regions of the body, e.g. Heart--Diseases--Prevention
